Regulations & Permits - Washington State Department of Ecology

Construction stormwater general permit history

CSWGP documentation from previous permit reissuance and appeals processes.

https://ecology.wa.gov/regulations-permits/permits-certifications/stormwater-general-permits/construction-stormwater-permit/permit-history

History of changes to CLARC

Read about major changes to the Cleanup Levels and Risk Calculation (CLARC) spreadsheet since 2004.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/contamination-clean-up-tools/clarc/latest-news

Stormwater Action Monitoring — source identification

Learning, sharing best ways to identify and eliminate sources of stormwater pollution in Western WA.

https://ecology.wa.gov/regulations-permits/reporting-requirements/stormwater-monitoring/stormwater-action-monitoring/sam-source-identification

Asbestos

Asbestos is a hazardous material still found in building materials. Learn how to keep workers safe.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/common-dangerous-waste/asbestos

Western Washington Hydrology Model

Western WA Hydrology Model models most hydrologic conditions for stormwater control and design.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/stormwater-permittee-guidance-resources/stormwater-manuals/western-washington-hydrology-model

SEPA guide for project applicants

SEPA guidance for private proponents.

https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/guide-for-project-applicants

Millennium Bulk Terminals Longview

Millennium proposed a coal export terminal at the former Reynolds smelter in Cowlitz County.

https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-at-ecology/millennium

Efficiency services for manufacturing and industrial facilities

We offer consulting services for manufacturing and industrial facilities to improve efficiency.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/pollution-prevention-services/toxics-reduction-assistance/efficiency-services-for-manufacturing-industries

Special waste

Special waste is a category of dangerous waste that may be managed as a conditionally exempt waste.

https://ecology.wa.gov/regulations-permits/reporting-requirements/dangerous-waste-reporting-requirements/dangerous-waste-annual-report/special-waste

Counting dangerous waste

Learn how to count your business's dangerous waste and determine your generator category.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/dangerous-waste-basics/counting-dangerous-waste

Financial assurance for cleanup operations

Financial assurance is a way to ensure that companies can pay for cleanup from their operations.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/dispose-recycle-or-treat/financial-assurance

Recycling credits

Recycling credits may affect your Pollution Prevention Plan or the Hazardous Waste Planning Fee.

https://ecology.wa.gov/regulations-permits/reporting-requirements/dangerous-waste-reporting-requirements/dangerous-waste-annual-report/recycling-credits

Generator category

Businesses that generate dangerous waste must determine their generator category each month.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/dangerous-waste-basics/generator-category

Stormwater Action Monitoring - status & trends studies

Monitoring impacts of stormwater runoff from urban areas into Western Washington receiving waters.

https://ecology.wa.gov/regulations-permits/reporting-requirements/stormwater-monitoring/stormwater-action-monitoring/sam-status-and-trends

SEPA checklist guidance

We provide information about each SEPA checklist question.

https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/sepa-checklist-guidance

Auto body shops

Learn how auto body and collision repair shops can manage common dangerous wastes.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/common-dangerous-waste/auto-body-shops

CLARC glossary

A glossary for terms and acronyms in CLARC's resource pages.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/contamination-clean-up-tools/clarc/glossary

CLARC guidance

Use these guidance documents in combination with CLARC to establish cleanup levels.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/contamination-clean-up-tools/clarc/guidance

Automotive recyclers

Auto recyclers deal with toxic materials. Learn best practices and ways to manage these materials.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/common-dangerous-waste/auto-recyclers

SEPA Review and Commenting Guidance

SEPA guidance for document reviewers.

https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/review-commenting